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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "PTHREAD_BARRIERATTR_GETPSHARED" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" pthread_barrierattr_getpshared 
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+.SH NAME
+pthread_barrierattr_getpshared, pthread_barrierattr_setpshared \- get
+and set the process\-shared attribute of the
+barrier attributes object (\fBADVANCED REALTIME THREADS\fP)
+.SH SYNOPSIS
+.LP
+\fB#include <pthread.h>
+.br
+.sp
+\fP
+.LP
+\fBint pthread_barrierattr_getpshared(const pthread_barrierattr_t
+*
+.br
+\ \ \ \ \ \  restrict\fP \fIattr\fP\fB, int *restrict\fP \fIpshared\fP\fB);
+.br
+int pthread_barrierattr_setpshared(pthread_barrierattr_t *\fP\fIattr\fP\fB,
+.br
+\ \ \ \ \ \  int\fP \fIpshared\fP\fB); \fP
+\fB
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIpthread_barrierattr_getpshared\fP() function shall obtain the
+value of the \fIprocess-shared\fP attribute from the
+attributes object referenced by \fIattr\fP. The \fIpthread_barrierattr_setpshared\fP()
+function shall set the
+\fIprocess-shared\fP attribute in an initialized attributes object
+referenced by \fIattr\fP.
+.LP
+The \fIprocess-shared\fP attribute is set to PTHREAD_PROCESS_SHARED
+to permit a barrier to be operated upon by any thread that
+has access to the memory where the barrier is allocated. If the \fIprocess-shared\fP
+attribute is PTHREAD_PROCESS_PRIVATE, the
+barrier shall only be operated upon by threads created within the
+same process as the thread that initialized the barrier; if
+threads of different processes attempt to operate on such a barrier,
+the behavior is undefined. The default value of the attribute
+shall be PTHREAD_PROCESS_PRIVATE. Both constants PTHREAD_PROCESS_SHARED
+and PTHREAD_PROCESS_PRIVATE are defined in \fI<pthread.h>\fP.
+.LP
+Additional attributes, their default values, and the names of the
+associated functions to get and set those attribute values are
+implementation-defined.
+.SH RETURN VALUE
+.LP
+If successful, the \fIpthread_barrierattr_getpshared\fP() function
+shall return zero and store the value of the
+\fIprocess-shared\fP attribute of \fIattr\fP into the object referenced
+by the \fIpshared\fP parameter. Otherwise, an error
+number shall be returned to indicate the error.
+.LP
+If successful, the \fIpthread_barrierattr_setpshared\fP() function
+shall return zero; otherwise, an error number shall be
+returned to indicate the error.
+.SH ERRORS
+.LP
+These functions may fail if:
+.TP 7
+.B EINVAL
+The value specified by \fIattr\fP is invalid.
+.sp
+.LP
+The \fIpthread_barrierattr_setpshared\fP() function may fail if:
+.TP 7
+.B EINVAL
+The new value specified for the \fIprocess-shared\fP attribute is
+not one of the legal values PTHREAD_PROCESS_SHARED or
+PTHREAD_PROCESS_PRIVATE.
+.sp
+.LP
+These functions shall not return an error code of [EINTR].
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+The \fIpthread_barrierattr_getpshared\fP() and \fIpthread_barrierattr_setpshared\fP()
+functions are part of the Barriers
+option and need not be provided on all implementations.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIpthread_barrier_destroy\fP(), \fIpthread_barrierattr_destroy\fP(),
+\fIpthread_barrierattr_init\fP(), the Base Definitions volume of
+IEEE\ Std\ 1003.1-2001, \fI<pthread.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .